EP3463833B1 - Verfahren und vorrichtung zum abdichten und aufpumpen aufblasbarer gegenstände und dichtmittel - Google Patents

Verfahren und vorrichtung zum abdichten und aufpumpen aufblasbarer gegenstände und dichtmittel Download PDF

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Publication number
EP3463833B1
EP3463833B1 EP17707824.3A EP17707824A EP3463833B1 EP 3463833 B1 EP3463833 B1 EP 3463833B1 EP 17707824 A EP17707824 A EP 17707824A EP 3463833 B1 EP3463833 B1 EP 3463833B1
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EP
European Patent Office
Prior art keywords
sealant
valve
inlet nozzle
compressor
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17707824.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3463833A1 (de
Inventor
Christopher Zaum
Philip Mathias Bialach
Rainer Detering
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Reifen Deutschland GmbH
Original Assignee
Continental Reifen Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Reifen Deutschland GmbH filed Critical Continental Reifen Deutschland GmbH
Publication of EP3463833A1 publication Critical patent/EP3463833A1/de
Application granted granted Critical
Publication of EP3463833B1 publication Critical patent/EP3463833B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/16—Auto-repairing or self-sealing arrangements or agents
    • B29C73/166—Devices or methods for introducing sealing compositions into articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/16—Auto-repairing or self-sealing arrangements or agents
    • B29C73/163—Sealing compositions or agents, e.g. combined with propellant agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J107/00—Adhesives based on natural rubber
    • C09J107/02—Latex
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J193/00—Adhesives based on natural resins; Adhesives based on derivatives thereof
    • C09J193/04—Rosin
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K3/1006—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by the chemical nature of one of its constituents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof

Definitions

  • the invention relates to a method for sealing and inflating inflatable objects, in particular for sealing and inflating motor vehicle tires, a sealing or pumping pressure being generated with the aid of a compressor, preferably driven by an electric motor, with which a valve and distributor device for sealing agent and compressed gas and via compressed air or sealant hoses between the valve and distributor device and an inlet valve or an inlet nozzle of the inflatable object, a sealant located in a sealant container connected to the valve and distributor device is conveyed into the inflatable object and at the same time the inflatable object opens after sealing is inflated to a predetermined operating pressure.
  • the invention relates to a device and a particularly suitable means for carrying out the method, namely a sealant.
  • repair kits or breakdown kits for temporary tire repairs have been known for a long time and operating element and thus provide a constantly usable and complete repair kit, with which it is possible to dispense with carrying a spare wheel mounted on a rim or with the constant checking of other repair materials such as hoses, various tool keys, jacks, etc.
  • the sealant required for such breakdown kits can be applied either manually by the user (squeeze system) or using the air compressor (pump system).
  • the air compressor In the case of the pump system, after the air compressor has been started for the first time, the sealant is pumped from the corresponding sealant container into the damaged tire by means of overpressure.
  • the damaged tire In a second process step, the damaged tire is inflated to a certain minimum pressure. In conventional systems, this refilling of the tire is done against the outflow of air through the leakage caused by the tire damage. The leak is sealed only after the minimum pressure has been reached by distributing the sealant as the journey continues. Therefore, without tire movement to distribute the sealant in the tire, sealing the tire leak is difficult.
  • document DE 202012 101110 U1 discloses a method according to the preamble of claim 1 and an apparatus according to the preamble of claim 5.
  • document DE 19948706 A1 discloses a "device for sealing and inflating tires in the event of punctures, with a pressure-resistant container (1) for receiving a sealing agent (7), the container (1) being connectable to a pressure source, characterized in that the container (1) has a device (9) for removing sealing means (7), supplying gas and, if necessary, for equalizing an overpressure" (see claim 1).
  • EP 2889352 A1 discloses a tire puncture sealant comprising latex and 55 to 61% by weight of 1,3-propanediol (see claim 1).
  • the German language document DE112011100453 T5 to the document U.S. 2012/309867 A1 discloses a "tire puncture sealant comprising a natural rubber latex, an antifreeze and an acrylic emulsion, wherein a mass ratio of a solid content of the natural rubber latex to a solid content of the acrylic emulsion (natural rubber/acrylic resin) is from 50/50 to 15/85, an amount of the antifreeze of is 100 to 300 parts by mass per 100 parts by mass of a total of the solid content of the natural rubber latex and the solid content of the acrylic emulsion, and a total mass of the solid content of the natural rubber latex and the solid content of the acrylic emulsion is 20 to 40% by mass of a total mass of the tire puncture sealant" (see claim 1).
  • document DE 102014224491 A1 discloses an "agent for the temporary sealing of inflatable or inflatable objects, in particular pneumatic vehicle tires, containing at least one rubber latex, at least one adhesive resin and at least one antifreeze, characterized in that it has a total solids content of rubber latex and adhesive resin of 3 to 30% by weight and the antifreeze agent(s) is/are selected from the group consisting of 1,2-propanediol and 1,3-propanediol and 1,2-butanediol and 1,3-butanediol and glycerol and triethylene glycol and 0 to 9% by weight ethylene glycol" (see claim 1).
  • the object of the invention was therefore to simplify the work steps when carrying out a repair with a breakdown set and to change them in such a way that it is no longer necessary to distribute the sealant by tire movement to the known extent, with a method and a device still having to be provided , which can reduce the production costs of tire repair kits by reducing the size and weight.
  • the aerosol produced is already distributed in the damaged tire during the filling phase and is carried along by the air still flowing out through the leak at this stage.
  • the aerosol is thus transported in the direction of the leakage position by the volume flow of the compressor.
  • the sealant aerosol causes a reduction in size through coagulation in the sense of an incipient pre-sealing of the existing leak.
  • the pre-sealing that begins in this way reduces the tire leakage by at least 20% up to 100% compared to the existing leakage without the use of sealant. This means that the time required to fill the tire can be significantly reduced compared to a conventional repair method using a breakdown kit without pre-sealing, or a less powerful compressor can be used for the system.
  • the most important influencing factors here are the dynamic viscosity ⁇ of the sealant as well as the delivery pressure p and the temperature increase ⁇ T at the inlet valve or in the inlet nozzle of the damaged tire, i.e. at the tire valve, which in this case acts as an atomizer nozzle, in or behind which the formation of the Aerosol takes place.
  • the inlet valve or the inlet nozzle is heated in such a way that the temperature difference ⁇ T of the inlet valve or the inlet nozzle to the ambient temperature is at least 10° C., preferably at least 40° is C.
  • the required increase in temperature of the inlet valve acting as an atomizer nozzle or the inlet nozzle is achieved via an adapted outlet temperature of the air compressor, with the outlet temperature of a typically used air compressor already being significantly higher than the ambient temperature due to its design.
  • the further increase in temperature is achieved by the formation of a special for the process according to the invention Suitable device, for example, in that the compressor or the compressor components have thermal insulation or at least partially consist of materials with low thermal conductivity, preferably plastic.
  • a further advantageous embodiment in terms of realizing a single general inventive idea is that the compressed air or sealant hoses between the valve and distributor device and the inlet valve or inlet nozzle of the inflatable object are thermally insulated or consist of materials with low thermal conductivity . This also ensures that the outlet temperature of the air compressor does not drop again significantly via the sealant hoses.
  • the cooling of the conveyed air on the way to the atomizer nozzle (tire valve) is critical for the method according to the invention. Typically, this route leads via the sealant canister and through a connecting hose.
  • the design of the device components according to the invention can ensure that the conveyed air or the air/sealant mixture is thermally insulated from the environment.
  • a further embodiment of the method has an advantageous effect, which consists in the fact that the inlet valve or the inlet nozzle is heated by an electric heater.
  • a further advantageous embodiment consists in the device being provided with devices which are used for suspension or attachment to the inflatable object or to the motor vehicle tire and in the immediate vicinity of the inlet valve or the inlet nozzle. This means that the sealant hoses are very short and the heat loss between the outlet of the air compressor and the inlet valve is further minimized.
  • Compressor associated with cooling fan which can be controlled depending on the temperature difference ⁇ T of the inlet valve or the inlet nozzle. As far as the design of the compressor allows, the cooling fan can then be switched off briefly in order to further increase the outlet temperature at the compressor and thus also to reach the temperature required for the formation of the turbulent flow at the inlet valve or the inlet nozzle.
  • a further advantageous embodiment of the method is that the inlet valve or the inlet nozzle is heated by increasing the outlet temperature of the compressor by using a piston stroke frequency of at least 2000 strokes per minute.
  • a further advantageous embodiment of the sealant is that the latex is at least partially natural latex, preferably has only natural latex. This supports aerosol formation and rapid distribution without reducing the ability to coagulate.
  • a further advantageous embodiment of the sealant is that the tackifier is an adhesive resin, preferably a colophony resin dispersion.
  • the mean particle size of the tackifier is less than 0.4 ⁇ m, preferably less than 0.3 ⁇ m. Such a design is particularly suitable for obtaining optimal formation of the aerosol.
  • sealant contains one or more surfactant sulfonates (strong surfactants), preferably anionic mono- or di-sulfonates and/or one or more alkylaryl ether sulfates, especially when the concentration of the surfactants is 0.5 - is 5.0%.
  • surfactant sulfonates strong surfactants
  • anionic mono- or di-sulfonates preferably anionic mono- or di-sulfonates and/or one or more alkylaryl ether sulfates, especially when the concentration of the surfactants is 0.5 - is 5.0%.
  • FIG. 1 shows a preferred embodiment of the process parameters for converting the flow into the turbulent range with a Reynolds number Re ⁇ 2300. Shown are the Reynolds numbers for a sealant according to the invention against the delivery pressure P and the temperature increase ⁇ T at the atomizer nozzle. In this case, for typical delivery pressures of 200 to 600 kPa, the compressor must achieve an increase in nozzle temperature of 40 to 60°C.
  • the area enclosed by the dashed line indicates the range of parameters for the method according to the invention, which is preferred working area according to the invention is the hatched area located in the border of the dashed line.
  • the increase in nozzle temperature is achieved via an adjusted outlet temperature of the air compressor, as shown above.
  • the cooling of the conveyed air on the way to the tire valve/tire inlet valve is critical for the present application.
  • the compressed air is routed over the sealant canister and through a connecting hose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Sealing Material Composition (AREA)
EP17707824.3A 2016-05-30 2017-02-27 Verfahren und vorrichtung zum abdichten und aufpumpen aufblasbarer gegenstände und dichtmittel Active EP3463833B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016209302.9A DE102016209302A1 (de) 2016-05-30 2016-05-30 Verfahren zum Abdichten und Aufpumpen aufblasbarer Gegenstände
PCT/EP2017/054469 WO2017207121A1 (de) 2016-05-30 2017-02-27 Verfahren und vorrichtung zum abdichten und aufpumpen aufblasbarer gegenstände und dichtmittel

Publications (2)

Publication Number Publication Date
EP3463833A1 EP3463833A1 (de) 2019-04-10
EP3463833B1 true EP3463833B1 (de) 2022-04-06

Family

ID=58191433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17707824.3A Active EP3463833B1 (de) 2016-05-30 2017-02-27 Verfahren und vorrichtung zum abdichten und aufpumpen aufblasbarer gegenstände und dichtmittel

Country Status (8)

Country Link
US (2) US11383466B2 (pl)
EP (1) EP3463833B1 (pl)
JP (1) JP6770081B2 (pl)
KR (1) KR102222379B1 (pl)
CN (1) CN109195780B (pl)
DE (1) DE102016209302A1 (pl)
PL (1) PL3463833T3 (pl)
WO (1) WO2017207121A1 (pl)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11498295B2 (en) 2018-07-17 2022-11-15 Aircom Automotive Sp. z o.o. Sp. k. Device for sealing pneumatic tires
DE102018219043A1 (de) 2018-11-08 2020-05-14 Continental Reifen Deutschland Gmbh Verteilervorrichtung zur Erzeugung einer Dispersion umfassend sowohl Gas als auch Dichtmittel, ein System zum Abdichten und Aufpumpen von Luftreifen, Verfahren zum zumindest teilweisen Abdichten einer Leckage in einem Luftreifen und entsprechende Verwendung
DE102018219038A1 (de) 2018-11-08 2020-05-14 Continental Reifen Deutschland Gmbh Verteilervorrichtung zur Erzeugung eines Aerosols, System zum Abdichten und Aufpumpen von Fahrzeugluftreifen und ein Verfahren zum Abdichten von Fahrzeugluftreifen oder aufblasbaren technischen Gummiartikeln sowie die Verwendung einer Dosiereinheit zum Erzeugen eines Aerosols
DE102018219045A1 (de) 2018-11-08 2020-05-14 Continental Reifen Deutschland Gmbh Verteilervorrichtung zur Einbringen eines Aerosols umfassend sowohl ein Gas als auch Dichtmittel in einen Fahrzeugluftreifen, System zum Abdichten und Aufpumpen von Luftreifen und ein Verfahren zum zumindest teilweisen Abdichten einer Leckage in einem Luftreifen sowie entsprechende Verwendungen
DE102018219042A1 (de) 2018-11-08 2020-05-14 Continental Reifen Deutschland Gmbh Verteilervorrichtung zur Erzeugung und zum Transportieren einer Dispersion umfassend sowohl ein Gas als auch ein Dichtmittel, System zum Abdichten und Aufpumpen von Luftreifen, ein Verfahren zum zumindest teilweisen Abdichten einer Leckage in einem Luftreifen und eine entsprechende Verwendung
DE102020214023A1 (de) 2020-11-09 2022-05-12 Continental Reifen Deutschland Gmbh Pannenhilfevorrichtung mit Schnittstelle zur Stromversorgung und Datenübertragung, Verfahren zur Steuerung einer solchen Vorrichtung und System aufweisend eine solche Vorrichtung
DE102020216050A1 (de) 2020-12-16 2022-06-23 Continental Reifen Deutschland Gmbh Pannenhilfevorrichtung mit Batterie, Verfahren zum Abdichten und Aufpumpen von Fahrzeugreifen und System zum Aufladen einer Pannenhilfevorrichtung
EP4628290A1 (en) 2022-11-28 2025-10-08 Active Tools International (HK) Ltd. Sealant bottle and method for repairing tire

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DE19948706B4 (de) 1998-10-13 2016-12-29 Illinois Tool Works, Inc. Vorrichtung zum Abdichten und Aufpumpen von Reifen
JP4392292B2 (ja) * 2004-06-01 2009-12-24 住友ゴム工業株式会社 小型簡易コンプレッサ装置
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JP4987130B2 (ja) 2011-02-09 2012-07-25 株式会社三共 玉タンク装置
WO2013137168A1 (ja) 2012-03-12 2013-09-19 トピー工業株式会社 自動車用ホイールディスクとその製造方法
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DE102018219038A1 (de) * 2018-11-08 2020-05-14 Continental Reifen Deutschland Gmbh Verteilervorrichtung zur Erzeugung eines Aerosols, System zum Abdichten und Aufpumpen von Fahrzeugluftreifen und ein Verfahren zum Abdichten von Fahrzeugluftreifen oder aufblasbaren technischen Gummiartikeln sowie die Verwendung einer Dosiereinheit zum Erzeugen eines Aerosols

Also Published As

Publication number Publication date
KR20180107205A (ko) 2018-10-01
JP6770081B2 (ja) 2020-10-14
PL3463833T3 (pl) 2022-08-01
EP3463833A1 (de) 2019-04-10
US20220281189A1 (en) 2022-09-08
US20190275756A1 (en) 2019-09-12
DE102016209302A1 (de) 2017-12-14
CN109195780A (zh) 2019-01-11
CN109195780B (zh) 2021-07-30
WO2017207121A1 (de) 2017-12-07
JP2019508293A (ja) 2019-03-28
US11383466B2 (en) 2022-07-12
KR102222379B1 (ko) 2021-03-02

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